AKNOLD — THE PALEONTULOliV AND STKATUiUArUY OF SAN rKDHO. 



15 



List of Speciks Found in the Pliocene of Deadman Island. 



(P iudicntes species living at Siui Pedro ; N indicates species found living only north of San l^cdru; 

 E indicates extinct species or those not known as living.) 



Callixta snJidiaphana, > 

 Chama pcllucida, P 

 Corhula tiitcola, P 

 Cuminijia californica, I 

 KcUia laptrousii, P 

 Lcda laphria, P 

 Lucina acutilinea/a, P 

 Lucina cali/ornica, P 

 Lijonsia cali/ornica, P 

 Macoma inqiiiiiata, P 



Acmcea insessa, P 

 Amphissa corrur/ala, V 

 Bcla fidicula, N 

 Bittium asperiim, P 

 Calliostoma canaliculalum, E 

 Catliostoma tricolor, P 

 Cerilhidea cali/ornica, P 

 Chlorostoma brunneum, P 

 Chlorostoma montereyi, P 

 Chrynodomus sp. indet., N 

 Chrysodomus rectirostris, N 

 Chrtisodomus tahulatus, P. 

 Clathurella conradiana, E 

 Columhella gausapata, P 

 Columbdla var. carinala, P 

 Conus cali/ornicus, P 

 CrypCochiton stelkri, N 

 Drillia merriami, E 

 Drillia iorosa, P 



PELECYPODA. 

 Myltlimeria nuttalli, P 

 Nncula castrcnsis, P 

 Panomya ampla, N 

 Panopta generosa, P 

 Pecten canrinus, N 

 Pecien hastalus, P 

 PccicH hericeus, N 

 Pecien Jordan! , E 

 Pecten stearnsii, E 



GASTKOPODA. 



Ftisus barbarensis, E 

 Hipponyx antiijiiatim, P 

 Liltorina planaxis, P 

 Mamjilia sculpturata, P 

 Nassa cali/orniana, P 

 Nasaa /ossala, P 

 Nctssa mendica, P 

 Nassa var. cooperi, P 

 Nassa perpinguis, P 

 Natica clausa, N 

 Neverita recluziana, P 

 Ocinebra intcr/ossa, P 

 Olivclla biplicala, P 

 OUoella inlorta, P 

 OUvella pedroana, P 

 Pleurotoma barlschi, E 

 Pleurotoma dalli, E 

 Pleurotoma perversa, P 

 Pleurotoma rcnaudi, E 



Photadidea pinita, P 

 Protornrdia renti/ilosa, 

 Soleu sicarius, P 

 Thracia Irapezoides, E 

 Thynsira bisecta, N 

 Thyasira ijoxildii, P 

 Venericardia barbarensis 

 Venericardia ventricosa, 

 Venus simillima, P 



Plntrotoma smlthi, E 

 Priene. oregonensis, P 

 Puncturella cucullala, N 

 Puncluri Ita galeala, N 

 Scida indianorum, P 

 Solariella cidaris, P 

 Solariella pcramabiiis, P 

 Taranus strongi, E 

 Terchra simplex, P 

 Thalolia cuffea, P 

 Tornatina rximia, P 

 Trophon gracilis, P 

 Trophon sralari/ormis, N 

 Trophon stuarti, N 

 Trophon var. precursor, 1 

 Trophon tenuisculpla, E 

 Turritella cooperi, P 

 Turritella jewetli, E 



Bryozoan remains, 



BRACHIOPODA. 



Laqueus jeff'rcysi, N 



Tcrebratalia smith!, 



Resume. 



Total number of species 87 



Pelecypoda, species 28 



Gastropoda, species ■ ^'^ 



Brachiopoda, species " 



Bryozoa, species 



Species now living at San Pedro 55 



Percentage of the whole fauna. .. ; •'•"'• 1 



Species living only north of San Pedro 16 



Percentage of the whole fauna 18.5 



Species living only south of San Pedro 



Percentage of the whole fauna " 



Species extinct or not known as living 15 



Percentage of the whole fauna '7-3 



Species of questionable habitat 1 



Percentage of the whole fauna ' — 



